Question

From a solid cylinder of height 20cm and diameter 12cm, conical cavity of height 8com and radius 6cm is hollowed out.Find the total surface area of the remaining solid

Answer 1

Answer:

Ar of remaining solid = 1056 sq cm

Step-by-step explanation:

Ar of remaining solid =CSA of cylinder+ ar of base of cylinder + CSA of cone

22/7(2×6×20+6×6+6×10)=1056 sq cm